Struct TwoSiteStepResult

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pub struct TwoSiteStepResult<T: Scalar> {
    pub eigenvalue: T::Real,
    pub residual: T::Real,
    pub iters: usize,
    pub converged: bool,
    pub u: DenseTensor<T>,
    pub s: DenseTensor<T::Real>,
    pub vt: DenseTensor<T>,
    pub trunc_err: T::Real,
}

Expand description

Result of a single 2-site DMRG step.

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§eigenvalue: T::Real

Local-block variational minimum (smallest H_eff eigenvalue).

§residual: T::Real

Local-eigensolver true residual ‖H v − λ v‖₂.

§iters: usize

Number of local-eigensolver iterations.

§converged: bool

Whether the local eigensolver reported convergence (Lanczos by its absolute true-residual test, ARPACK by its relative-tol stopping criterion).

§u: DenseTensor<T>

Left singular vectors, shape [chi_l, d_i, chi_new].

§s: DenseTensor<T::Real>

Singular values, shape [chi_new], descending.

§vt: DenseTensor<T>

Right singular vectors, shape [chi_new, d_{i+1}, chi_r].

§trunc_err: T::Real

Frobenius norm of the discarded singular values.

Trait Implementations§

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impl<T: Clone + Scalar> Clone for TwoSiteStepResult<T>
where T::Real: Clone,

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fn clone(&self) -> TwoSiteStepResult<T>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<T: Debug + Scalar> Debug for TwoSiteStepResult<T>
where T::Real: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> Freeze for TwoSiteStepResult<T>
where <T as Scalar>::Real: Freeze,

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impl<T> RefUnwindSafe for TwoSiteStepResult<T>
where <T as Scalar>::Real: RefUnwindSafe, T: RefUnwindSafe,

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impl<T> UnsafeUnpin for TwoSiteStepResult<T>
where <T as Scalar>::Real: UnsafeUnpin,

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impl<T> UnwindSafe for TwoSiteStepResult<T>
where <T as Scalar>::Real: UnwindSafe + RefUnwindSafe, T: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> ByRef<T> for T

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fn by_ref(&self) -> &T

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> DistributionExt for T
where T: ?Sized,

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fn rand<T>(&self, rng: &mut (impl Rng + ?Sized)) -> T
where Self: Distribution<T>,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Imply<T> for U
where T: ?Sized, U: ?Sized,

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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